Home / 18,949.68-28,418.04-11,162.88

Finding the Fourth Proportional to 18,949.68, 28,418.04 and 11,162.88

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Solution

The fourth proportional to 18,949.68, 28,418.04 and 11,162.88 is: 16,740.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.68 : 28,418.04 = 11,162.88 : x
  2. Step 2: Convert to fraction form
    18,949.68/28,418.04 = 11,162.88/x
  3. Step 3: Cross multiply
    18,949.68x = 28,418.04 × 11,162.88
  4. Step 4: Simplify right side
    18,949.68x = 317,227,170.36
  5. Step 5: Solve for x
    x = 317,227,170.36/18,949.68
  6. Step 6: Final answer
    x = 16,740.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.